Top navigation not loading in Safari

I got error reports that the Safari browser did not load the dropdown menus in SP top navigation menu. I use dropdown menus on a site that I have built on MOSS for a public web site (PF). It looked like this in the Safari browser:

As you can see, there is a large white area where the dropdown menus was supposed to be loaded. So I rebuilt the site and tried it in Safari, and all worked well. Since that was a bit strange, I started making comparisons. Turns out (after a couple of hours digging….) that it had to do with the IIS! Quite unexpected… I had two headers, one that had the SP port and one that used port 80. BUT on the port 80 no default header was entered, like the full hostname, so when I entered the URL to the site on the port 80 – magic! The dropdown menu was loaded and the site worked again:

About

Welcome! My name is Lise Rasmussen, @SharePointBabe, and this is my blog where I write articles about SharePoint and Office 365. I am the host of WITGirls podcast where we share news and experiences about the same topics. More info in About.